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><A
NAME="AEN1669"
>Appropriate Remote Commands</A
></H1
><P
>&#13;        All of the remote commands described above are wrapped up with
        the usual boilerplate.  The files always start with
        <TT
CLASS="literal"
>00 00 00</TT
> and the “magic”
        command described above, then two <TT
CLASS="literal"
>ESC @</TT
>s to
        reset the printer.  The remote command sequences come next; if
        they print anything that is usually followed by a
        <TT
CLASS="literal"
>FF</TT
> (<TT
CLASS="literal"
>0C</TT
> hex) character to
        feed the page, then the file ends with another two
        <TT
CLASS="literal"
>ESC @</TT
>s to get back to the ground state.
    </P
><P
>&#13;        An alignment sequence goes like this:
    </P
><P
></P
><OL
TYPE="1"
><LI
><P
>&#13;            Host uses <TT
CLASS="literal"
>DT</TT
> to print an alignment
            sheet.
          </P
></LI
><LI
><P
>&#13;            User eyeballs the sheet to see which is the best aligned
            pattern.
          </P
></LI
><LI
><P
>&#13;            Host sends a <TT
CLASS="literal"
>DA</TT
> command indicating
            which pattern the user chose.
          </P
></LI
><LI
><P
>&#13;            If the user said “realign”, meaning he isn't
            done yet, go to step 1.
          </P
></LI
><LI
><P
>&#13;            We are done: host sends a <TT
CLASS="literal"
>SV</TT
> command
            and exits.
          </P
></LI
></OL
><P
>&#13;        The sequence used (by the STC 3000, at least) to print from
        the roll feed is (with byte count omitted):
    </P
><DIV
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><P
></P
><A
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></A
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><PRE
CLASS="screen"
>PM 00 00
SN 00 00 00
EX 00 00 00 00 05 01
ST 00 01
SM 00 02</PRE
></TD
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><P
></P
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><P
>&#13;        The sequence used by the STP 870 to print on plain paper is
    </P
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><P
></P
><A
NAME="AEN1696"
></A
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><TD
><PRE
CLASS="screen"
>PM 00 00
IR 00 03
SN 00 00 01
SN 00 01 00
SN 00 02 01
EX 00 00 00 00 05 00
FP 00 00 00</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>&#13;        and the job finishes with
    </P
><DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN1699"
></A
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><TR
><TD
><PRE
CLASS="screen"
>IR 00 02
LD</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
><P
>&#13;        For different paper type settings on the STP 870, the
        arguments to <TT
CLASS="literal"
>SN</TT
> vary.  The arguments to the
        first and third <TT
CLASS="literal"
>SN</TT
> commands are as outlined
        in the description of the <TT
CLASS="literal"
>SN</TT
> command above;
        the arguments to the second (“platen gap”) are
        <TT
CLASS="literal"
>00 01 01</TT
> for thick papers (“matte
        paper—heavyweight”, “photo paper” and
        “premium glossy photo paper”) and <TT
CLASS="literal"
>00 01
        00</TT
> for all others.
    </P
><P
>&#13;        For roll-mode printing, the STP 870's sequence changes as
        follows.  <TT
CLASS="literal"
>IR</TT
>'s arguments become <TT
CLASS="literal"
>00
        01</TT
> in the header, and <TT
CLASS="literal"
>00 00</TT
> after
        the job, and <TT
CLASS="literal"
>EX</TT
>'s last argument changes
        from <CODE
CLASS="constant"
>00</CODE
> to <CODE
CLASS="constant"
>01</CODE
>.
    </P
><P
>&#13;        For zero-margin printing on the STP 870, the arguments to
        <TT
CLASS="literal"
>FP</TT
> become <TT
CLASS="literal"
>00 0xb0 0xff</TT
>.
        This moves the origin about 5.5mm to the left, to a point one
        tenth of an inch to the left of the left-hand edge of the
        paper, allowing printing right up to (and beyond) the edge of
        the paper.  Some printers (at least the STP 870) include white
        absorbent pads at the left margin position and other positions
        (89mm and 100mm on the STP 870) to soak up ink which misses
        the edge of the paper.  Printing off the edge of paper of a
        width not aligned with a pad could result in making a mess of
        the inside of the printer and ink getting on the reverse of
        the paper.
    </P
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